Time is just a concept created by human beings. Ask any animal what time it is, they will tell you the time is now. So if you always look at life in a linear way, then yes, nothing lasts forever, because everything is under the law of impermanence. Everything decays and transmutes itself into another form. However, if you take away the concept of time, and realize that right now, is the only time every event has ever occured, then now is forever. Because the past is created from the now, and the future is created from the now. The now is eternal, it is forever, because all we ever have is right now. This means that all events are occuring simultaneously, past, present and future. So from nothing, comes everything, so if nothing lasts forever, that means everything lasts forever. That is the divine paradox of life. You are eternal, immortal, and infinite, because you are made up of the fabric of the universe, which is nothing, yet everything. You are all that is, can be, and ever will be.